22446629 has 2 divisors, whose sum is σ = 22446630. Its totient is φ = 22446628.

The previous prime is 22446623. The next prime is 22446649. The reversal of 22446629 is 92664422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14025025 + 8421604 = 3745^2 + 2902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22446629 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22446623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11223314 + 11223315.

It is an arithmetic number, because the mean of its divisors is an integer number (11223315).

Almost surely, 2^22446629 is an apocalyptic number.

It is an amenable number.

22446629 is a deficient number, since it is larger than the sum of its proper divisors (1).

22446629 is an equidigital number, since it uses as much as digits as its factorization.

22446629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 22446629 is about 4737.7873527629. The cubic root of 22446629 is about 282.0874140086.

The spelling of 22446629 in words is "twenty-two million, four hundred forty-six thousand, six hundred twenty-nine".